Previously the job would only become "active" when the downloads
started. That meant that arbitrarily many hash computations could be
queued at the same time.
Since the the file was opened during future creation this could lead to
a "too many open files" problem if there were lots of new-new conflicts.
To change this:
- Make PropagateDownload become active when computing a hash
asynchronously.
- Make the computation future open the file only once it gets run. This
will make it less likely for this problem to occur even if thousands
of these futures are queued.
For #7372
Previously fatal error texts were duplicated: Once they entered the
SyncResult via the SyncFileItem and once via syncError().
syncError is intended for folder-wide sync issues that are not pinned
to particular files. Thus that duplicated path is removed.
For #5088
Previously the pin states of deleted files stayed in the 'flags'
database and could be inadvertently reused when a new file with the same
name appeared. Now they are deleted.
To make this work right, the meaning of the 'path' column in the 'flags'
table was changed: Previously it never had the .owncloud file suffix.
Now it's the same as in metadata.path.
This takes the safe parts from #7274 for inclusion in 2.6. The more
elaborate database schema changes (why use 'path' the join the two
tables in the first place?) shall go into master.
Previously RequestEtagJob did return the etag verbatim (including extra
quotes) while the db had the parsed form. That caused the etag
comparison during discovery move detection to always fail. The test
didn't catch it because the etags there didn't have quotes.
Now:
- RequestEtagJob will parse the etag, leading to a consistent format
- Tests have etags with quotes, detecting the problem
- Close the UploadDevice to close the QFile after the PUT job is done.
This allows winvfs to get an oplock on the file later.
- Don't rely on QFile::fileName() to be valid after
openAndSeekFileSharedRead() was called. The way it is openend on
Windows makes it have an empty filename.
If one adds a new file to an online-only folder the previous behavior
was to upload the file in one sync and dehydrate it in the next. Now
these new files get set to Unspecified pin state, making them retain
their data.
Instead of all at once, to reduce peak memory use.
Changing UploadDevice in this way requires keeping the file open for the
duration of the upload. It also means changes to open(), seek(), close()
to ensure that uses of the device work right when a request needs to
be resent.
Since Qt does not yet transparently resend HTTP2 requests in some cases
we do it manually.
The test showed a problem where the initial non-200 reply would close
the target temporary file and the follow-up request couldn't store any
data. Removing that close() call is safe because there also is a
_saveBodyToFile flag that guards writes to the target file.
The previous patch ensured that the sqlite temporaries weren't deleted
and recreated for every sync run, but there was still time between
client startup and the first sync run where they would have the
"needs-sync" icon.
